| Acronym | Meaning |
| SDD | Silicon Drift Detector |
| ASW | Augmented Spherical Wave |
| BBFM | Bond-bending Force Model (for Phonon Calcns.) |
| HFET | High Field Effect Transistor |
| DMW | Dissimilar-metal Weld |
| MCPF+R | Modified Coupled-pair Functional (method With) Relativistic (correction) |
| PAA | Photon Activation Analysis |
| NSTA | National Science Teachers Association |
| IEA | International Energy Agency |
| DIAL | Differential Absorption Lidar (laser Radar Sensing) |